Toggle Switches

Toggle switches are among the most basic and most common of all electronic components, the switch moves contacts that either provide a path for current to flow through or moves those contacts in such a way that the path is cut. The toggle switches most people will be familiar with are light switches.

How Does a Toggle Switch Function?
Toggle switches may vary a bit in function from one to the next depending upon their configurations. However, the basics are the same.
When the actuator (the toggle itself) is moved, the armature in the switch moves the contact into position either energizing the circuit or de-energizing it. Once the switch is moved from one position to the other, it typically stays that way. There are also momentary switches, which energize or de-energize a circuit for as long as they are actuated and then go back to their normal state once the actuator is released. This is accomplished via a spring mechanism that exerts a force on the armature from the inside.

Contact Configuration of a Toggle Switch
  • A single pole single throw (SPST) switch is the simplest and most common type of toggle switch. These switches allow simple on and off operation for a single circuit. Most light switches are SPST switches.
  • Single pole double throw (SPDT) switches can be used to change where a voltage is directed. The double throw means that the switch can be used to energize two different circuits - one at a time - from a single source of energy.
  • Double pole single throw (DPST) switches allow an operation that is very similar to having two SPST switches hooked together in one device. The switch can turn two circuits on and off. These are very convenient when more than one device needs to be controlled with the same switch.
  • Double pole double throw (DPDT) switches allow two different circuits to be served by the same pole. These are used in applications where a circuit may need to have changing voltages applied to connected devices.

There are also switches with the designation CO, such as SPCO (single pole changeover) switches. These have an off position in the middle of the switch and can be used to energize or de-energize two different circuits attached to the device.

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Description Price Contact Configuration Switch Operation Contact Current Rating Mounting Type Terminal Type IP Rating Illuminated Panel Cut Out Width Panel Cut Out Height Panel Cut Out Diameter Actuator Length Actuator Material Voltage Rating Contact Resistance
RS庫存編號 417-5489
製造零件編號3646NF/2
BrandAPEM
HK$175.82
單位
Double Pole Single Throw (DPST) Latching 12 A Panel Mount Solder, Tab IP67 - - - - 17.5mm Brass 28V dc 10mΩ
RS庫存編號 317-673
製造零件編號FTP7904
BrandBinder
HK$102.58
單位
Double Pole Double Throw (DPDT) On-Off-On 6 A @ 250 V ac Panel Mount Through Hole - - - - 6.2mm 11.5mm Chrome Plated Brass - 10mΩ
RS庫存編號 881-1192
製造零件編號DA100-BB-B
HK$18.542
/個 (每包:10個)
單位
Single Pole Single Throw (SPST) Latching 10 A Panel Mount Tab - - - - 12.7mm 17.44mm Nylon 250V ac -
RS庫存編號 512-926
製造零件編號T9-CS2-23
BrandOtto
HK$261.33
單位
Double Pole Double Throw (DPDT) Latching 20 A @ 28 V dc Panel Mount Screw - - - - - 17.53mm Stainless Steel - -
RS庫存編號 861-0309
製造零件編號C3972BBAAA
HK$71.39
單位
Double Pole Double Throw (DPDT) (On)-Off-(On) 20 A Panel Mount Tab - - - - 12.7mm 17.5mm Metal - -
RS庫存編號 222-601
製造零件編號ATE2D-5M3-10-Z
HK$24.89
單位
DPDT On-On 50 mA@ 48 V ac/dc PCB Through Hole - - - - - 6mm - - 50mΩ
RS庫存編號 123-2398
製造零件編號5636A12
BrandAPEM
HK$37.97
單位
Single Pole Double Throw (SPDT) Latching 4 A Panel Mount Solder Lug - - - - 6.5mm 6.3mm Brass 30V dc 10mΩ
RS庫存編號 881-1448
製造零件編號IM254-73
HK$191.85
單位
Four Pole Double Throw (4PDT) On-Off-On 15 A Panel Mount Screw - - - - 12.7mm 17.44mm - 250V ac -
RS庫存編號 464-4749
製造零件編號M-2032
HK$64.89
單位
Three Pole Double Throw (3PDT) Latching 3 A@ 30 V dc, 6 A@ 125 V ac PCB Through Hole IP67 - - - - - Chromium Plated Brass - 10mΩ
RS庫存編號 692-5251
製造零件編號5639ADBGK3V
BrandAPEM
HK$133.10
單位
Single Pole Double Throw (SPDT) Locking lever, On-Off-On 4 A @ 30 V dc Panel Mount Solder - - - - 6.5mm 15.1mm Nickel Plated Brass - 10mΩ
RS庫存編號 910-8103
製造零件編號636H/2+U282
BrandAPEM
HK$88.83
單位
Single Pole Double Throw (SPDT) Latching 15 A Panel Mount Solder Lug - - - - 12.2mm 17.5mm Nickel Plated Brass 400V ac 10mΩ
RS庫存編號 394-453
BrandRS PRO
HK$40.59
單位
Double Pole Double Throw (DPDT) Latching 5 A @ 28 V dc Panel Mount Solder - - - - 6.35mm 21mm Chromium Plated Brass - 10mΩ
RS庫存編號 879-8203
製造零件編號2FA53-73/TABS
HK$23.199
/個 (每包:10個)
單位
Single Pole Single Throw (SPST) Latching 15 A Panel Mount Solder Lug - - - - 12.7mm 17.44mm Brass 250V ac -
RS庫存編號 317-831
製造零件編號AWTR1504
HK$228.10
單位
Double Pole Double Throw (DPDT) (On)-On 20 A @ 250 V ac Panel Mount Tab IP67 - - - - 17.5mm Brass - 10mΩ
RS庫存編號 614-6348
製造零件編號647H/2-5RS
BrandAPEM
HK$76.05
單位
Double Pole Double Throw (DPDT) (On)-Off-(On) 5 A @ 25 V dc Panel Mount Solder - - - - 12.5mm 40mm Nickel Plated Brass - 10mΩ
RS庫存編號 350-226
製造零件編號C1720HOAAG
HK$24.54
單位
Single Pole Double Throw (SPDT) On-Off-On 20 A @ 250 V ac Panel Mount Solder, Tab IP40 - - - 12.7mm 16.4mm PC - 100mΩ
RS庫存編號 164-8128
製造零件編號4-6437630-6
HK$58.96
個 (以毎盒:100)
單位
Double Pole Double Throw (DPDT) On-Off-On 6 A @ 250 V ac Panel Mount Through Hole - - - - 6.2mm 10.5mm Chromium Plated Brass - 10mΩ
RS庫存編號 134-1093
製造零件編號MTE106D
HK$80.81
單位
Single Pole Double Throw (SPDT) Latching 4 A @ 30 V dc Panel Mount Solder - - - - - 10.5mm - - 10mΩ
RS庫存編號 879-8339
製造零件編號2M1-SP1-T1-B1-M1QE
HK$17.71
/個 (每包:10個)
單位
Single Pole Single Throw (SPST) Latching 5 A Panel Mount Solder Lug - - - - 6.35 (1/4 Bushing) mm, 11.91 (15/32 Bushing) mm 10.4mm Brass 250V ac 10mΩ
RS庫存編號 875-0677
製造零件編號TT11DGVRA104
HK$21,970.00
1 包 250 套
Pack(s)
Single Pole Double Throw (SPDT) Latching - Panel Mount Vertical Right Angle Through Hole - - - - 4.5mm 5.61mm Brass Alloy, Stainless Steel, Thermoplastic 20 V ac, 20 V dc 20mΩ